If your house is not wrapped with any type or kind of metal such as but not limited to metal siding or stusko with stucko Wire and if the roof is not metal and if the walls are not poured concrete. Then the stations in the direction of 64 degrees magnetic compass will be received with a Simple Not Amplified indoor tv antenna directed to the east. And with a second antenna directed to the south it is highly likely that the stations to the south , the Canada stations 6 and 10 and stations KVOS 35 , KBCB 19 , K24IC 24 will be received with a Simple Not Amplified indoor tv antenna.
http://forum.tvfool.com/showthread.php?t=233 http://www.kyes.com/antenna/pointing/pointing.html , if the two simple indoor antennas receive Ok , then two simple indoor antennas at the tv location can be connected to a remote control A/B switch due to the fact that the two simple antennas will be directed in different directions one to the east and one to the south. You might be able to receive the channels to the east and south with one simple indoor antenna if you can get it turned just right. If the simple indoor antenna that is directed to the south does not receive the 3 american channels then you will need to install a out side antenna like one of these. Channelmaster 3016 or Winegard 7082P or Antennacraft HD 850 . Also read and understand this about Real and Virtual Digital Tv Channels.
http://forum.tvfool.com/showthread.php?t=695